Celestial hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  NGC 7253
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NGC7253 ( Arp 278 ) + Deep field, Romain Chauvet
NGC7253 ( Arp 278 ) + Deep field
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NGC7253 ( Arp 278 ) + Deep field

Acquisition type: Lucky imaging
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NGC7253 ( Arp 278 ) + Deep field, Romain Chauvet
NGC7253 ( Arp 278 ) + Deep field
Powered byPixInsight

NGC7253 ( Arp 278 ) + Deep field

Acquisition type: Lucky imaging

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Description

Hi there

My last image from last summer ; finally i got a very good night !
I tried to stay all night on one object and managed to get a lot of data. Plus, I paid a lot of attention to collimation and tried for the first time to use the entire field of my Altaïr 26M camera ( aps-c size )
Stars are still not perfect in the corners ; hard to tell what is the cause... Backfocus ? Tilt ? Alignment ? Coma corrector not perfect ? Something moving / bending during the night ? Probably a combination of all those.
But for a drizzle x2 image i think that is still quite good ; hard to get a perfect 96Mp image anyways ;)

Seeing was good at the beginning and became even better during the night. I used around 4h of data for the final image, which does not look like much, but is a new record for me at the moment
The faintest objects visible are about magnitude 24

Maybe it is just in my head, but when i'm looking at the background, i see a lot of big galaxy structures : some clusters, some long galaxy strings, and some big voids ; i like it a lot, i feel like looking at the cosmic web.

Hubble took a closeup of the center two galaxies, but other than that, this is the most accurate image of this region i could find on the internet so far. I particularly like the galaxy on the right side, there seems to be a lot of interesting features !

Total imaging time was about 5h30
14124 x 1" for the background ; FWHM = 1.0" on final stack
4661 x 1" for the foreground ; FWHM = 0.9" on final stack

Hope you will enjoy it as much as i do !

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